Window-screen



(No Model.)

0. S. NOROROSS.

WINDOW $055515.

CHARLES s. NoncRoss, or PORTLAND, MAINE.

WINDOW/SCREEN.

SPECIFICATION forming part of Letters Patent No. 515,054, dated February 20, 1894. Application filed November 18, 1893- Serial No. 491,319. (No model.)

To aZZ zuh01n it may concern:

Be it known that I, CHAELEs S. NOROROSS, a citizen of the United States, residing at Portland, in the county of Cumberland and State of Maine, have invented certain new and useful Improvements in \Vindow-Screens: and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to a metal window screen designed particularly for fireproof buildings and to guides for mounting such screens in placein the window casing. Screen frames are now made of metal for fireproof work and the wire netting is usually fastened to the steel or iron frame by soldering. As a result of this construction the netting cannot be renewed when it wears or rusts out except at considerable trouble and expense.

The aim of my present invention is to construct a metal screen which will admit of the renewal of the netting with little trouble and expense and a further object of my invention is to fit the window casing with guides which will be all of metal and therefore fireproof and which will at the same time allow the frame to slip easily in and out holding it firmly when in place. These several objects of my invention are carried out by means of the devices hereinafter described and claimed.

In the accompanying drawings I have illustrated a window screen with its appurtenances which is constructed according to my invention.

In the drawings Figure 1 isa front view of the screen in position in the casing. Fig. 2 is a section on the line as 00 of Fig. 1. Fig. 3 is a detail of the screen frame showing the manner of fastening the netting. Fig.4 is an enlarged section 011 the line y y of Fig.1 and Fig. 5 is a detail of the leaf springs.

A represents the casing of the window and B is the screen frame which is composed of flat metal bars dovetailed together at the ends. The wire netting d is secured to the metal frame by means of the rod or wire 6 and the molding b. The edges of the netting are folded around the rod e which is laid on the metal frame and the rod and the netting are then fastened in place by the molding. The molding has formed on its outer edge a channel or groove which fits over the rod 6 and the inner edge isformed fiat. Pinsf pass through the fiat portion of the molding and secure it to the metal frame. The wire netting is thus held firmly in place and it can easily be removed and replaced by driving outthe pins f and taking off the molding and the rod 6. The screen is held in its place in the window casing by means of the guides O C. These guides consist of metal angle pieces secured by one flange to the inside of the window casing. The frame B rests against the project ing flange which holds it in one direction and in the other direction it is held by leaf springs the free ends of which are arranged to press the frame against the flange. Each of these springs has a flange at one end bent laterally at right angles to the spring body and it is secured in place by inserting this flange between the guide and the casing and there fastening it with nails or screws. The spring 0 and con the upper half of the guides have their free ends pointing upward so that the frame can be slipped under the lower springs c from the bottom of the casing and forced squarely against the guide as it is lifted. The springs c c at the lower end of the guides have their free ends pointing downward so that as the frame is lowered into place it will pass between the guide and the spring. I have here shown three sets of springs, viz: c at the upper end, 0 at the lower end and c the latter so placed that they will support the top of the frame when it is in position. The screen is inserted by sliding it under the springs c and pushing it upward until it is above the springs c after which it is lowered into place behind the spring 0 WVhen in place it is supported by the springs c and c and it is easily raised and lowered and easily removed by an operation the reverse of that which I have described.

It is evident that a greater number of springs than I have shown may be used but I regard three sets as shown sufficient for all ordinary work.

I Claim-"7 1. The herein described window screen composed of a metal frame, a rod or wire about which the edges of the netting are folded, a

sheet metal molding for securing said rod and said netting to said frame, said molding having an outer channeled portion adapted to fit over said rod and an inner fiat portion and pins passing through said flat portion for securing the molding to the frame.

2. The herein described guide for window screen consisting of a sheet metal angle piece secured to the inside of the casing by one of its flanges combined with leaf springs each having a lateral flange'on one end at right angles to the spring body, secured between the flange of said angle piece and the window casing, the free end of said spring being bent to act against the projecting flange of said :5 angle piece. In testimony whereof I affix my signature in 1 presence of two witnesses. v

CHARLES S. NOROROSS. Witnesses:

S. W. BATES, E. DUDLEY FREEMAN. 

